Fireplace-throat



(No Model.)

J. LALLY. FIREPLAGB THROAT.

No. 544,857. Patented Aug. 2o, 1895.

1r mi' INVENTEIR:

UNITED STATES PATENT EETCE.

JOHN LALLY, OF WALTHAM, MASSACHUSETTS.

Fl REPLACE-Tl-l ROAT.

SPECIFICATION forming part of Letters Patent No. 544,857, dated August 20, 1895.

Application filed November l5. 1894. Serial No. 528,862. (No model.)

To all whom, t may concern:

Be it known that I, JOHN LALLY, of Waltham, in the county of Middlesex and State of a front elevation of my improved fireplace' throat. Fig. 2 represents a section on line 2 2 of Fig. l. line 3 3 ot' Fig. 2. Fig.4 represents a section similar to Fig. 2, showing Vthe damper in a different position. Fig. 5 represents a modilication of the construction shown in Figs. 2,

3, and 4. Fig. 6 represents a sectional view showing another modification. Fig. 7 representsa section on line 7 7 of Fig. 6.

The same letters and numerals of reference indicate the same parts in all the iigures.

ct represents my improved throat, which comprises a casing provided at its top with an outlet-opening and at its loweredge with a horizontally-projecting flange d, the rear.

and end portions of which are adapted to be interposed between two courses of masonry, as shown in Figs. 2 and 4, so that the throat may be supported by the rear and end walls of a brick or iron fireplace, the front or forwardly-projecting portion of the iiange being thus held in position to support the front wall of masonry above the iireplace and the tiles covering said front wall.

The Walls of the throat or casing comprise the vertical front portion 2, the inclined portion 3, extending from the portion 2 to the opening at the top of the throat, the Vertical end portions 4, the inclined end portions 5, and the inclined rear portionl 6.

b represents the damper, which is provided at its ends withtrunnions b', resting in recesses formed for their reception in the in- Fig. 3 represents a section on or lugs ol d, formed or cast on the under side ot' the front portion of the iiange or', said rod being movable lengthwise in said lugs as well as adapted to turn therein. To the inner end of the rod c is fixed an arm o', while to the outer end of said rod is attixed au operating knob or handle c2.

d represents a connecting-rod, which con- `nects the arm c with the upper portion ot the damper b, said rod being loosely connected both with the damper and with the arm o', so that when the said arm, `which swings in a Vertical plane, is` moved by the rotation of the rod c in its bearings the damper will be opened or closed, as the case may be.

The throat is provided on the inner side of the vertical front portion 2 with a series of projections, which are shown in Figs. 2, 3, and

4 as ratchet-teeth e, formed on a curved plate aftixed to said front portion 2, while in Fig. 5 said projections are shown as studs e', which may be cast upon the front portion 2. Said projections are so formed and arranged that when the arrn c is drawn outwardly toward the front portion 2 of the throat by an endwise movement ot' the rod o one of said pro jections will engage the arm c and prevent it from turning in either direction, thus securing the damper in any position to which vit may have been adjusted.

When it is desired to readjust the damper,

the rod c is pushed inwardly to disengage the arm c from the projection with which it had been engaged, thus enabling the rod and arm to besfreely turned to effect any-desired adj ustment of the damper, after which the damper may be secured by moving the rod c and arm c' outwardly to engage the arm with one of the projections.

In Figs. 6 and 7 I show means for holding the damper by friction in any ot its positions,

IOC

said means comprising a plate t', attached to the flange a between the lugs d cl, said plate having ears t" t at opposite sides of an orifice through which the rod c passes. Said ears are connected by a screw 712, which may be adjusted to cause the ears to clamp the rod at any desired degree of pressure.

The front portion of the flange a has an upwardly-projecting lip a2, which serves as a stop to confine the course of bricks 7c, resting upon the said portion of the flange, the lip preventing said bricks from being displaced or slipping outwardly from the body of the throat. This lip, by preventing outward displacement of the bricks, insures the retention of the tiles m in their proper positions, it being often the case that the tiles are crowded outwardly by the slipping of the bricks away.

from the body of the throat. is avoided by the lip a2.

It will be observed that the form of the throat is such that a comparatively deep chamber is formed by the throat above the fiange a for the reception of smoke, the vertical front portion 2 and the inclined front portion 3 co-operating in forming a smoke-receptacle of such-,depth or capacity that there is less liability of the escape of the smoke into the room than would be the case it the front portion of the throat were inclined baekwardly instead of being carried vertically upward be- This objection fore being inclined backwardly.

I claim- I 1. The improved lire-place throat comprising the casing having an outlet at its top and-an outwardly projecting horizontal flange surrounding its base, the end and rear portions of said fiange being formed to be supported by the back and ends of' a hre-place while the outwardly projecting front portion of said flange constitutes a support for the masonry above the fire-place; a damper pivoted to the casingin the outlet thereof; and

a damper-operating rod orl handle located below and projecting forward from the front portion of the flange.

2. The improved tire-place throat. comprising the casing having an outlet at its top, an outwardly projecting horizontal flange surrounding its base, an upwardly projecting brick-retaining lip on the front portion of said flange, a damper pivoted in the outlet of the casing, and a damper-operating rod or handle located below and projecting forward from the front portion of said ange.

3. The improved fire-place throat comprising the outwardly projecting base or flange a the rear and end portions of which are arranged to be supported by the back and ends of a lire-place while its front portion is formed to support the masonry above the fire-place, the throat casing eXt'ending upwardly from the said Harige, said throat and flange being formed as a single piece or casting, the damper b hung in the opening of the casing, the longitudinally movable rotatable rod c located below the flange a and mounted in bearings projecting downwardly from said flange, the arm c on the inner end of said rod, the connecting rod CZ connecting said arm with the damper, and the fixed projections on the inner surface of the casing adapted to arrest said arm, the arm being adapted to be engaged with and disengaged from said projections by endwise movements of the r'od, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing Witnesses, this 10th day of November, A. D. 1894-.

JOHN LALLY.

Vitnesses:

A. D. HARRIsoN, RoLLrN ABELL. 

